The particular requirements as specified in this part of IEC 60364 are applicable to mobile or transportable units. For the purposes of this part, the term "unit" refers to a vehicle and/or mobile or transportable structure in which all or part of an electrical installation is contained. Units are either of the mobile type or of the transportable type. Examples are units for television and broadcasting, medical services, advertising, fire fighting,using special information technology, units for disaster relief, catering units and the like. The requirements of this part also apply where two or more units are connected together to form a single electrical installation (see 717.551.6 and 717.551.7). The requirements are not applicable to − electrical circuits and equipment for automotive purposes, − generating sets, − units covered by other parts of Part 7 (e.g. caravan and motor-caravan), − pleasure craft (see IEC 60092-507), − mobile machinery in accordance with IEC 60204-1, − traction equipment of electric vehicles, − mobile or transportable homes, offices and the like for extended use at the same location (see general rules of IEC 60364). Where applicable, additional requirements as laid down in other clauses of Part 7 are to be taken into consideration, e.g. for showers, medical locations, etc.